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flux measurements) are described in the project Standard Operating Procedures (SOPS) and <br />summarized throughout this document. <br />Sample preservatives, containers, and holding time requirements for each analyte is summarized <br />in Tables 2.2 through 2.4. Reporting limits and quality control sample requirements are also are <br />provided in Tables 2.2 through 2.4. <br />3.4 Analytical Methods and Procedures <br />Laboratory Analytical and Measurement Procedures <br />Laboratory analytical and measurement procedures were provided to the by each project <br />analytical laboratory. Labeled sample containers were provided by the laboratories. <br />Preservatives were added to the bottles by the laboratories as required by the method. <br />Temperature sensitive samples such as water and tissue were stored on ice in an insulated cooler <br />immediately following sample collection, to maintain a temperature of less than or equal to 4°C. <br />Soil and sediment samples did not require additional preservation. Allowable holding times for <br />chemical parameters are listed in Tables 2.2 to 2.4. Samples were shipped to the laboratory after <br />collection in sufficient time to allow the laboratory to meet holding time requirements. <br />Sample Preparation <br />The laboratories prepared samples for analyses in accordance with methodology described in the <br />analytical methods, listed in Tables 2.2 through 2.4. Specific sample preparation requests are <br />noted on the chain of custody form. <br />3.5 Quality Control Checks <br />Internal <br />Field personnel will review and verify 100 percent of the data generated in the field. The CPM <br />will be responsible for ensuring field and laboratory data is validated and verified in accordance <br />with the methods described in Section 3.6. <br />External <br />The project analytical laboratories are responsible for implementing the QC requirements <br />defined in the methods listed in Tables 2.2 through 2.4 and for implementation of their internal <br />QC program. <br />3.6 Data Verification and Validation <br />Validation and verification of data generated during field activities are essential to obtaining data <br />of acceptable quality. Data values that are significantly different from the rest of the data <br />population are called "outliers." A systematic effort must be made to identify any outliers or <br />April 2009 19 Site Characterization Plan